webCore Subsystem

The heart of ZepraBrowser's rendering logic. Handles HTML parsing, DOM tree construction, CSS calculations, box models, and render trees.

Standard Rendering Pipeline

Byte Stream (Network)
│
▼
┌───────────────────┐ ┌───────────────────┐
│ HTML Parser │ │ CSS Parser │
└─────────┬─────────┘ └─────────┬─────────┘
│ │
▼ (DOM Tree) ▼ (CSS Rules)
┌────────────────────────────────────────────┐
│ Style Attachment │
└──────────────────────┬─────────────────────┘
│ (Render Tree)
▼
┌────────────────────────────────────────────┐
│ Layout Engine │
└──────────────────────┬─────────────────────┘
│ (Box Models)
▼
┌────────────────────────────────────────────┐
│ Paint / Compositing │
└──────────────────────┬─────────────────────┘
│ (Display Lists)
▼
Handed over to NXRender via WebGPU/C++ interface

Internal Modules

dom/

Implementation of HTML Node, Element, Document, and EventTarget abstractions.

html/

HTML5 Tokenizer, Tree Builder, and specification-compliant state machines.

css/

CSS parsing, specificity scoring, and cascading styles computation logic.

layout/

Block, Inline, Flex, and Grid layout constraint definitions mapping DOM to screen coordinates.

render/

Render tree instantiation and invalidation paths.

paint/

Graphics context recording traversing z-index stacking context hierarchies.

ZepraBrowser webCore Subsystem© 2026 KetiveeAI
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